Radiator for motor-driven vehicles.



FIG. 1.

m. SPERY.

WITNESS:

FIG.

RADIATOR FOR MOTCR DRIVEN VEHICLES. APPLICATION. FILED DEC-28,1318.

Patented Dec. 16,191%

2 SHEETSSHEET 1.

2a FIG. 4. l 2a INVENTOR:

' Anom s.

P. F. SPERY.

RADIATOR FOR MOTOR DRIVEN VEHICLES. APPLICATION FILED 05c. 2a, 1918.

FIG. Z3,

FIG, 1 0.

W2 mass:

run.

PHILMGBJE I SPERY, OF CHICAGO, ILLINOIS.

RADIATOR FOR MOTOR-DRIVEN VEHICLES.

To all whom it may concern:

Be it known that I, PHILMORE F. SPERY. a citizen of the United States, and a. resident of the city of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in'Radiators for Motor-Driven Vehicles; and I do hereby declare that the following description of my said invention, taken in connection with the accompanying sheet of drawing, forms a full, clear, and exact specification, which will enable others skilled in theart to which it appertains to make and use the same.

My invention relates generally to improvements in radiators for motor driven vehicles; and it consists essentially, in the novel and peculiar con'ibuiation of parts and details of construction, as hereinafter first fully set forth and described and then pointed out in the claims.

The object of my present invention isthe production of an eilicient filler for the air conduits of radiators for motor vehicles, and the method of producing the same rapidly and economically. These fillers serve the purpose of heat conductors, c. to abstract heat from the walls of the watertubes in these radiators, and at the same time afford means for reinforcing the cellular structure of the cores of these radiators and to prevent the water tubes from spreading under water pressure therein.

In order to accomplish these desirable objeots, I construct the radiator core and the fillers therein, as illustrated in the drawings forming a part of this specification, in which Figure 1 is an end elevation of a fragment of a radiator core embodying my invention. Fig. 2 is a front elevation of the same. Fig. 3 is a sectional plan of a portion of the core, on line 3-3 of Fig. 1. Fig. 4 is a plan of a filler strip employed in this core and illustrating the first step in the production thereof. Fig. 5 is a similar view of the filler strip and showing the second step; and Fig. 6 is an edge view of the same. Fig. 7 is an edge view of the filler strip and showing the condition thereof after the third operation has been performed thereon. Fig. 8 is an elevation of the filler, in its complete form as seen from the back thereof. Fig. 9- is an end view of the same. Fig. 10 is a plan of a. filler strip blank of a slightly modified construction. Fig. 11 is a similar view of this Specification of Letters latent.

Patented Dec. 16, 919.

Application filed December 28, 1918. Serial No. 268,679.

blank, showing its condition after the second operation 1 has been performed thereon. Fig. 12 is a sectional view on line 12-12 of Fig. 11. Fig. 13 is an edge view of the device shown in Fig. 11. Fig. 14 is an elevation of the filler strip after the third operation has been performed thereon; and

'Fig. 15 is a similar view of the filler strip after the final operation of closin all the seams thereof has been accomplis ed and the filler is ready for insertion into a coreunit. Fig. 16 is an end view of the same.

Like parts are designated by the same characters and symbols of reference in all the various figures.

As illustrated in Figs. 2 and 3, this radiator core comprises a multiplicity of like units A l Am -A6, "etc, arranged side by side, and'fofa height and width corresponding to that of a casing in which the core is to be installed, the depth of the core varying from two to fiveinches according to the capacity required. v

' Each core unit is preferably formed of two strips or ribbons of very thin sheet metal, of about #32 B. & S. gage, each strip 12, having flat longitudinal margins 14, and then longitudinal offsets as at 13, the space between these offsets being undulated by a series of corrugations 15, the corrugations being, preferably, of curved formation, and these corrugations are flattened at their ends where they join the offsets, as at 16. The object of thus flattening the corrugations is to prevent straining and possibly a rupture of the metal in forming these corrugations. The ends of these strips are left blank or flat, as shown at 17, and these blank portions are bent at right angles, as at 18; and a pair of these strips are then overlapped or scanned at their terminals, as at 19, so that the corrugations face each other as illustrated in FigsuQ and 3. These coreunits are placed side by side, the backs of one unit facing the backs of adjacent units, whereby there is formed between adjacent units a vertical tl1roughpassage 20, of a width equal to the opposing offsets in the strips, and of a length equal to the transverse distance bctween the offsets 13. These through passages 20 constitute the water passages, and they are straight passages so that one can look through them when examined from either end thereof, while the corrugated portions afford enlargements in these passages. The object'of corrugating these strips transversely is two-fold: first, to increase the metallic cooling area, and then to afford crotches or angles 21, for the reception and retention of the heat-absorbing fillers B located between opposing walls" of a single strip or ribbon,-22, ofsheet metal of suitable width and, preferably, long enough to reach from the top to the bottom of a unit, although a plurality of the formed fillers may be employed, if desired, in a single unit. This ribbon is first perforated by a-series of equally spaced, cross-shaped openings, there being a transverse opening 23, and two shorter, longitudinal, openings 24, terminating in the transverse openings and thereby afford the cross-shaped aper ture. There is between adjacent ends of the longitudinal openings 23, a portion of the strip which I prefer to refer-to as a connector; and at the longitudinal margins of the filler strip adjacent the terminals ofthe transverse openings23, there are portions of the strip which I term lands 26, in order to recognize these portions in the completed filler. This strip is transversely folded or bent at right angles to the plane of the strip, as indicated by dotted lines 27, 37, in Fig. 4, and doubled upon itself centrally through the lands 26, to afford rightangular projections on the filler, as illustrated in Fig. 6. These projections are comprised of the portions of the filler strip above the transverse openings 26 and the dotted line 27, as indicated by the referencenumeral 38, and below the transverse opening 26 and the lower dotted line 27, and marked 39. These projections are at this time open at their backs, or in other words, their walls are not in contact, which I find desirable to enable this operation of folding being performed by suitable machinery. In this condition, the strip is then longitudinally folded upon itself, as illustrated by the dotted lines 28, Figs. 4, 5, l0, and 11,

whereby the portions 25 form the connection between the doubled up strips, which now comprise two sections,-the projections at the right of the strip shown in Fig. 5 extending from the right of the longitudinally doubled up strip in Fig. 7 while those projections at the left of Fig. 5, extend from the left of Fig. 7, the extensions being in rightangled alincme'nt. In this condition the. joints of the filler strip are still open, as heretofore mentioned, and to complete the filler, the strip is placed into a suitable (lie wherein first the lands 26' are forced upon each other, and then the connectors 25 pressed together so that the adjacent portions of the filler strip are now in close contact one with the other, as shown in Fig. 2. A filler, when thus completed is easily and conveniently handled, and when placed into a coreunit, the terminals of the right-angularly extending portions thereof engage the crotches 21 between the corrugations of the unit strips, as illustrated in Figs. 2 and 3.

An inspection of Fig. 8 will now disclose the fact that the lands 26 extend somewhat b'eyond'the' marginal edges 29, formed by the openings 23, in the filler strip, whereby shoulders 30, are formed so that when the filled is placed into the core-unit, the longitudinal margins of the filler strip are flush with the longitudinal margins of the unitstrip, the portions 26 occupying the spaces 14:; the shoulders 30 abutting against the offsets 13, and the portions 29 engaging the crotches 21 between the corrugations 15.

As shown in Fig. 3, there are employed two complete fillers C, in each core-unit, one being pushed into the space between opposing unit walls from the front, and the other this position, the appearance of the core in front and at the back is that of a rectangular cellular structure, as shown in Fig. 2, the marginal lines of the unit andthe central portion of the filler forming the vertical, and the lateral projections ofthe filler, forming the horizontal boundaries of the square cellular formation.

,from the back of the core-unit. When in The spaces between the vertical walls of the core-units form air-passage C, through which air is drawn to contact with the metallic surfaces of the core-units, thereby abstracting heat from these Walls to reduce the temperature of the water passing through the water tubes in a downward direction; and this cooling process is augmented by .the metallic fillers in the air passages, the margins of which contact with the walls of the water tubes.

A core, When fully assembled, is dipped, first with its front, into a bath of molten solder for a depth of about one-eighth of an inch, which solder, when congealed and hardened, will homogeneously unite the parts; and this dipping process is then repeated at the back of the core, as well as at its top and bottom surfaces.

I have hereinbefore described the preferred embodiment of iny mvcnt1on,'asd1sclosed in Figs. 1 to 9 inclusive, and in Figs. 10 to 16 inclusive, I have illustrated a slightly modified form of the filler. Inthis modified construction, the metallic strip or ribbon 22, while of the same length, width,

and'thickness as the one shown in Figs. and 5, differs therefrom in that there are two alined openings 23, Figs. 10 and 11, which cut through the longitudinal margins of the ribbon and stop short of, or terminate at some distance from the vertical central lines 28, of this ribbon, and that longitudinally alined slots i2 8, are provided in the strip, the length of which is, however, equal to the distance from end to end of the elements 24, Fig. 4, so as to leave between the ends of the longitudinal slots 24*, the connection 25, while the lands 26, are adjacent the longitudinal slots 2%. This strip is folded in precisely the same manner as the strip shown in Figs. 4 and 5, the only dif t'erence in the appearance of this filler when inserted into the core-unit being that while in the preferred embodiment of my inven tion the roll 25 shown in Figs. 8 and 9. is at the back of the filler, this roll 25, in the modified form of construction isat the front of the core, as shown in Figs. 15 and 16, at 25. This modified form of construction is to all intents and purposes ,as efi'ective as the preferred construction; the only reason for selecting this latter construction ltt ing, that the filler has a somewhat neatcr appearance.

Having thus fully described this invention, I claim as new and desire to secure to myself by Letters Patent ot the United States- 1. In a radiator for motor vehicles having a series of vertically disposed, spaced apart, water tubes, the walls of which are transversely corrugated to afford crotches or angles, a filler between adjacent water tubes, said filler comprising a metallic ribbon, there being in said ribbon a series of openings transversely disposed therein. and

a. series of longitudinal openings, said ribbon being bent and rebent to afford vertical bars and right-angular, alined, projections, said projections extending horizontally in opposite directions from said bars, the terminals of said projections being construeted to engage the crotches in the walls of the water tubes.

A filler for the core-units of a motor vehicle radiator, said filler being constructed of a thin, sheet-metal, ribbon, there being in said ribbon spaced apart, cross-shaped openings, the main portions of said openings being transversely disposed, the b 'anches of said openings being longitudinally disposed in the longitudinal center line of said ribbon to afford lands between the margins of said ribbon and the transverse openings therein, and connectors between the termi nals of the longitudinal openings, said ribbon being bent and rebent to afford vertically disposed bars and right-angular projections at opposing sides of the vertical bars, said, projections being axially alined,

the vertical and the horizontal members of the tiller comprising two thicknesses of the metallic ribbon in intimate contact with each other.

A filler for the core units of a motor vehicle radiator, said filler being constructed of a thin. sheet-metal. ribbon, there being in said ribbon spaced apart, cross-shaped, openings, the main portion of said openings being transversely disposed, the branches of said openings being longitudinally disposed, said longitudinal branches being in the longitudinal center line of said ribbon to aflord lands between the margins of said ribbon and the terminals of the transverse openings, and connectors between the terminals of the longitudinal openings, said ribbon being bent and rebent to aiford vertical bars. and horizontal bars at both sides of;

said vertical bars. said horizontal 'bars being axially alindd, said horizontal bars being widest at their outer ends to afford shoulders therein. v

l. The method of producing radiator fillers for the air conduits therein, which consists in producing in a sheet-metalribbona series of spaced apart, cross-shapcdnopenings, then doubling the ribbon through the transverse portions of said openings to U- shaped form and at the same time bending the ribbon at right anglesadjacent theouter terminals of the longitudinal branchesof said openings. then doubling the ribbon longitudinally upon itself to afford right-angular, open. projections thereon. then closing these projections, and finally closing the longitudinal fold in said ribbon to force all of the adjacent members of the ribbon into intimate contact with each other.

5. A blank adapted for being formed into a tiller for use between water tubes ofradiator cores,'said blank comprising a sheet metal ribbon, said ribbon having a width corresponding to the depth of a radiator core, said filler strip having a series of crossshaped"perforations in spaced apart relatiouship. the 'principallimbs of said crossshaped pertoratimis being transversely disposed, and the branches of the cross shaped perforations being longitudinally disposed,

rnrLMonE F. SPE'RY, 

